It's a CECHL01 and when I got it there was a RSOD error saying the hdd was corrupt. I pulled it out formated it put it back into the ps3. Now I'm brought to a screen saying system software cannot be run properly press ps button to restart. If the system cannot start properly you will need to reinstall software. Connect storage media that contains update data of 3.15 or later then press start and select at the same time. I've done tried this a ton of times with cfws, 3.15 ofw and 3.55 ofw and no matter whats on the USB(even tried burning it to a CD) it stalls out on the next screen: Checking...Please Wait. I've tried changing USB ports disconnected the bd n tried no bd cfw nothing. Also tried recovery mode but I cannot move using a controller to a different choice other than restart ps3. Frustration level maxed out hoping someone has some advice for me here! Thanks guys!